%I A013581
%S A013581 1,3,9,15,33,75,90,105,165,213
%N A013581 Let P = 2*3*5*..*p_n = n-th primorial number (A002110), G = Z_2xZ_3x...xZ_{p_n}; 
               a(n) = max{e in G} min{i : both e+i, e-i are relatively prime to 
               P}.
%Y A013581 Sequence in context: A048701 A031159 A058039 this_sequence A133997 A057909 
               A082702
%Y A013581 Adjacent sequences: A013578 A013579 A013580 this_sequence A013582 A013583 
               A013584
%K A013581 nonn
%O A013581 1,2
%A A013581 Paw Hermansen (paw(AT)imada.ou.dk)
%E A013581 I added the two terms a(9)=165 and a(10)=213, which were found by a computer 
               program that searched through all numbers. Michael Hovdan (michael.hovdan(AT)gmail.com), 
               Aug 31 2009